A piece of magnesium with a mass of 0.121 g is added to 50.0 mL of a 1.00 M HCl solution a...

A piece of magnesium with a mass of 0.121 g is added to 50.0 mL of a 1.00 M HCl solution at a temperature of 22 °C. When the magnesium dissolves, the solution reaches a temperature of 33 °C. For the equation, see your answer to Problem b.

a. What is the limiting reactant?

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b. What volume, in milliliters, of hydrogen gas would be produced at 33 °C when the pressure is 750. mmHg?

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c. How many joules were released by the reaction of the magnesium? Assume the density of the HCl solution is 1.0 g/mL and the specific heat of the HCl solution is the same as that of water.

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d. What is the heat of reaction for magnesium in J/g? in kJ/mol?

Problem

A strip of magnesium metal dissolves rapidly in 6.00 mL of a 0.150 M HCl solution, producing hydrogen gas and magnesium chloride.

Magnesium metal reacts vigorously with hydrochloric acid.

a. Assign oxidation numbers to all of the elements in the reactants and products.

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b. What is the balanced equation for the reaction?

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c. What is the oxidizing agent?

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d. What is the reducing agent?

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e. What is the pH of the 0.150 M HCl solution?

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f. How many grams of magnesium can dissolve in the HCl solution?